A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5018 and later
Conclusion & alert: CVE-2025-53412 is rated Low Risk (14.9/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.15%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-04-17 | 0.13% | 0.15% | +0.02% |
| 2 | 2026-04-05 | 0.16% | 0.13% | -0.03% |
| 3 | 2026-01-14 | — | 0.16% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 0.6 | 4.0 | LOW |
|
— | — | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| qnap | file_station | >= 5.5.6.4691, < 5.5.6.5018 | cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.qnap.com/en/security-advisory/qsa-25-38 | Vendor Advisory |